摘要
基于NURBS技术提出一种重建复杂三维地质体的建模方法 首先对数字地形模型进行简化处理以满足地质体重建的需要 ;然后结合地质原始资料和解译数据 ,拟合构造出更能反映地质规律的地质结构面 在此基础上 ,利用三维图形学技术重建复杂地质体 ,并根据实际需要对整体模型实现一系列的三维地质信息可视化分析 实际水电工程应用表明 。
Based on NURBS techniques, a new modeling approach for reconstructing complex 3D geologic body realistically is presented. First the digital terrain model is simplified to meet the demands of geologic body reconstruction. Then a variety of geologic structural planes are constructed conforming to the original geologic information and interpreted data. NURBS surface is constructed to fit all these predefined conditions. Based on this global model, a series of visualization analysis for 3D geologic information could be realized. An example of its application in hydropower engineering project is illustrated. It shows the feasibility and validity of the proposed approach for satisfying actual demands.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
北大核心
2005年第2期284-290,共7页
Journal of Computer-Aided Design & Computer Graphics
基金
国家自然科学基金 (5 0 4790 48)
高等学校优秀青年教师教学科研奖励计划 (2 0 0 166)
关键词
地质体
NURBS技术
三维重建
可视化分析
geologic body
NURBS technique
3D reconstruction
visualization analysis
